How do I join 2 line that are not in the same plane ?

[Anonymous]

Hello to everybody !

I'm very new to Fusion360 and also fairly new to new 3D soft. Use to use Cathia  ... 25 years ago.

I wanted to design a trumpet valve, so I need a tube to go throu a cylinder in and out but not in the same plane and orientation.

I can do it in Rhino as there is a function to join 2 lines that are not in the same plane by a 3rd degree curve (keeping the tangent at the start and end).

How do I do this in Fusion ?

I've tried with plane tangent to a surface, etc ... but no success

Thanks very much

Gilles

[TheCADWhisperer]

Can you File>Export and then Attach your *.f3d file here?

Do you have 3D sketch functionality turned on in Preferences?

[Anonymous]

Yes, I have 3D sketch functionality turned on in Preferences.

[davebYYPCU · Accepted solution]

In your file I found two planes, two axis and two points.

On both planes create 2d sketch, Project the point into the sketch and put a line on it, perpendicular to the cylinder.

When done create a 3d sketch, Project > Include 3d Geometry and select both new lines. Purple in the pic

Draw a spline to each end point, and make tangent constraints at both ends of the spline.

You can do the sweep profile on a Plane on a Path, and .....

[Anonymous]

Great ! Thanks !

I can't manage to activate the tangent handle bars ... they hilight but I can't move them ...

[laughingcreek · Accepted solution]

going to be lazy and recycle a screen cast I made for someone else.  I think it might help with you also

[laughingcreek · Accepted solution]

once sketch curves are 3d, you have to use the "move" command to move things around 

[Anonymous]

Ok That is great ! thanks !

how do I snap the handle bar to the line ?

[davebYYPCU]

No, use the tangent constraint, 

my example, was click purple line, select tangent constraint, click spline.  Both ends.

You have to use move tool to lengthen or shorten the handle, but using the constraint means just that it will stay tangent.

Might help.....

[davebYYPCU]

No, use the tangent constraint, 

my example, was click purple line, select tangent constraint, click spline.  Both ends.

You have to use move tool to lengthen or shorten the handle, but using the constraint means just that it will stay tangent.

Pete's video is exactly what I just wrote, sorry, he used the tangent constraint before the move command.  The handles should be snapped to the line.

Might help.....